Fort Benton, MT has a semi-arid climate with long, cold winters and short, warm summers. The average temperature during the summer months is around 70 degrees Fahrenheit (21C), while during the winter months it can drop to as low as -18 degrees Fahrenheit (-28C). Rainfall is relatively light throughout the year with an annual average of only 13 inches (33 cm). Snowfall typically occurs from December through March, accumulating up to 28 inches (71 cm) annually. The area experiences a wide range of temperatures depending on altitude and location in relation to the Rocky Mountains.
Fort Benton, Montana gets 13 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Fort Benton averages 42 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 186 sunny days per year in Fort Benton. The US average is 205 sunny days.
Fort Benton gets some kind of precipitation, on average, 67 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 86 degrees
Winter Low: the January low is 9
Rain: averages 13 inches of rain a year
Snow: averages 42 inches of snow a year